CVE-2023-7316Network attack vector

Browser script execution via unescaped Graph Explorer input

Published Oct 30, 2025 · Updated May 14, 2026

Cross-site scripting in Nagios XI before 2024R1 allows remote authenticated users to execute script in a victim's browser via Graph Explorer. The Graph Explorer component insufficiently validates or escapes user-supplied input before including it in browser-rendered output; no vulnerable parameter or code path is public. Exploitation requires low-privileged access and victim interaction, and the disclosed consequence is browser-context script execution.

CVSS severity5.4
Medium
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in Nagios XI before 2024R1 allows remote authenticated users to execute script in a victim's browser via Graph Explorer. The Graph Explorer component insufficiently validates or escapes user-supplied input before including it in browser-rendered output; no vulnerable parameter or code path is public. Exploitation requires low-privileged access and victim interaction, and the disclosed consequence is browser-context script execution.

The record

CVE
CVE-2023-7316
Published
Oct 30, 2025
Updated
May 14, 2026
Vendor
Nagios Enterprises, LLC
Product
Nagios XI
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 30, 2025CVE publishedPublication date reported by the CVE source.
  2. May 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <2024R1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Nagios Enterprises, LLC · Nagios XIversion=0 <2024R1

Published CVSS scores

5.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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